Abstract:
The emerging trend of green and affordable energy generation due to high electricity
demand has led to excessive penetration of distributed energy resources in the LV
(Low Voltage) side of the distribution grid. PV generation being intermittent in
nature, its excessive integration causes a lack of voltage regulation, frequency
deviation, reverse power flow, phase imbalance and power quality problems which
renders the grid unreliable and unstable. In regard to the aforementioned issue, this
thesis provides insight to enhance the PV hosting capacity of the grid while
preventing voltage rise on the grid, due to active power injection, by integrating
energy storage system and capacitor bank for harmonic filtration of the inverter. This
study is carried out in MATLAB/Simulink by incorporating the MPPT Controller for
PV based on the “Fuzzy logic” technique and control method for the voltage
regulation. Peak Sharing strategies of battery energy storage and inverter with
reactive power control framework were designed for the study. This methodology
results in increasing grid flexibility and PV self-consumption.
